Use inferred member names (IDE0037)

Article
06/25/2022

Property	Value
Rule ID	IDE0037
Title	Use inferred member name
Category	Style
Subcategory	Language rules (expression-level preferences)
Applicable languages	C# and Visual Basic
Introduced version	Visual Studio 2017
Options	`dotnet_style_prefer_inferred_tuple_names`
	`dotnet_style_prefer_inferred_anonymous_type_member_names`

Overview

This rule enforces whether inferred tuple element names and inferred anonymous type member names are preferred when the tuple or anonymous type is declared.

Options

Set the values of the rule's associated options to specify whether inferred or explicit names are preferred for tuple elements and anonymous type members.

dotnet_style_prefer_inferred_tuple_names
dotnet_style_prefer_inferred_anonymous_type_member_names

For information about configuring options, see Option format.

dotnet_style_prefer_inferred_tuple_names

Property	Value	Description
Option name	dotnet_style_prefer_inferred_tuple_names
Option values	`true`	Prefer inferred tuple element names
	`false`	Prefer explicit tuple element names
Default option value	`true`

// dotnet_style_prefer_inferred_tuple_names = true
var tuple = (age, name);

// dotnet_style_prefer_inferred_tuple_names = false
var tuple = (age: age, name: name);

' dotnet_style_prefer_inferred_tuple_names = true
Dim tuple = (name, age)

' dotnet_style_prefer_inferred_tuple_names = false
Dim tuple = (name:=name, age:=age)

dotnet_style_prefer_inferred_anonymous_type_member_names

Property	Value	Description
Option name	dotnet_style_prefer_inferred_anonymous_type_member_names
Option values	`true`	Prefer inferred anonymous type member names
	`false`	Prefer explicit anonymous type member names
Default option value	`true`

// dotnet_style_prefer_inferred_anonymous_type_member_names = true
var anon = new { age, name };

// dotnet_style_prefer_inferred_anonymous_type_member_names = false
var anon = new { age = age, name = name };

' dotnet_style_prefer_inferred_anonymous_type_member_names = true
Dim anon = New With {name, age}

' dotnet_style_prefer_inferred_anonymous_type_member_names = false
Dim anon = New With {.name = name, .age = age}

Suppress a warning

If you want to suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the rule.

#pragma warning disable IDE0037
// The code that's violating the rule is on this line.
#pragma warning restore IDE0037

To disable the rule for a file, folder, or project, set its severity to none in the configuration file.

[*.{cs,vb}]
dotnet_diagnostic.IDE0037.severity = none

To disable all of the code-style rules, set the severity for the category Style to none in the configuration file.

[*.{cs,vb}]
dotnet_analyzer_diagnostic.category-Style.severity = none

For more information, see How to suppress code analysis warnings.

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